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The radial styloid process: All you need to know about useful landmarks during arthroscopic resection of the scaphoid bone

The radial styloid process: All you need to know about useful landmarks during arthroscopic resection of the scaphoid bone 2

All you need to know about useful landmarks during arthroscopic resection of the scaphoid bone which is refered to radial styloid process:

The radial styloid process is found on the lateral surface of the distal radius bone.[1] It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base.[2] The radial collateral ligament of the wrist attaches at its apex. The lateral surface is marked by a flat groove for the tendons of the abductor pollicis longus and extensor pollicis brevis.

Clinical significance

Breakage of the radius at the radial styloid is known as a Chauffeur’s fracture; it is typically caused by compression of the scaphoid bone of the hand against the styloid.

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De Quervain syndrome causes pain over the styloid process of the radius.[3][4] This is due to the passage of the inflamed extensor pollicis brevis tendon and abductor pollicis longus tendon around it.

The styloid process of the radius is a useful landmark during arthroscopic resection of the scaphoid bone.

A prominent styloid process of the radius makes applying a wrist splint more difficult.

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The radial styloid process is a projection of bone on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base, and the radial collateral ligament of the wrist attaches at its apex. The lateral surface is marked by a flat groove for the tendons of the abductor pollicis longus and extensor pollicis brevis.

The radial styloid process: All you need to know about useful landmarks during arthroscopic resection of the scaphoid bone 3

Radial styloid process fracture treatment


Breakage of the radius at the radial styloid is known as a Chauffeur’s fracture; it is typically caused by compression of the scaphoid bone of the hand against the styloid

Hand radial inverted imaging is the whole-body figure, which is located on the dorsal side of the radial side of the hand. It is distributed around the first and second phalanges, the metacarpal bone, the scaphoid bone, the trapezium bone, and the radial styloid process

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a. Head.
The head is located on the dorsal side of the first line around the radial styloid process. The width is between the dorsal second line and the radial side of the Yin-Yang line. The length is 1.5 times the width.

b. Neck.
The neck is located on the dorsal side of the first line around the scaphoid bone and the trapezium bone from proximal to distal on the hand, in the order of the first through seventh cervical vertebrae.

c. Trunk.
The trunk has three parts: back, lumbar, and hip. The back is located on the first metacarpal bone from distal to proximal in the order of the first through twelfth thoracic vertebrae. The back can also be divided into the upper, middle, and lower thirds. The lumbar and hips will be located on the second metacarpal bone from proximal to distal in the order of the first through fifth lumbar vertebrae, sacral vertebrae, and hips. The lumbar and hips each occupy half of the distance in this area.

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d. Arms.
The left arm is located on the left hand on the ulnar side of the dorsal first line on the thumb, and on the right hand it will be on the radial side of the dorsal first line. The right arm will be on the left hand on the radial side of the dorsal first line, and on the right hand it will be on the ulnar side of the dorsal first line. The left and right shoulder, elbow, and wrist will distribute at the metacarpophalangeal joint, interphalangeal joint, and both sides of the corner of the fingernail on the thumb.

e. Legs.
The left leg is located on the left hand at the ulnar side of the dorsal second line, and on the right hand, it will be on the radial side of the dorsal second line. The right leg is located on the left hand at the radial side of the dorsal second line, and on the right hand, it will be on the ulnar side of the dorsal second line. The left and right hip, knee, and ankle will be distributed on the second metacarpophalangeal joint, proximal interphalangeal joint, and distal interphalangeal joint.

The lateral surface of the lower extremity of the radius is prolonged obliquely downward into a strong, conical projection, the radial styloid process, which gives attachment by its base to the tendon of the Brachioradialis, and by its apex to the radial collateral ligament of the wrist joint. The lateral surface of this process is marked by a flat groove, for the tendons of the Abductor pollicis longus and Extensor pollicis brevis.

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The radius is one of the two bones that make up the forearm, the other being the ulna. It forms the radio-carpel joint at the wrist and the radio-ulnar joint at the elbow. It is in the lateral forearm when in the anatomical position. It is the smaller of the two bones.

The radial styloid process: All you need to know about useful landmarks during arthroscopic resection of the scaphoid bone 4

Proximal radius

The proximal radius consists of the radial head, neck, and tuberosity. The radial head is cylindrical which articulates with the capitellum of the humerus. The head rotates within the annular ligament to produce supination and pronation of the forearm.

The neck and tuberostiy support the head and provide points of attachments for supinator brevis and Biceps brachi

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Radial shaft

The shaft of the radius is slightly curved into convex from the body. The majority of the shaft has three borders: anterior, posterior, and interosseous.

The radius is a long bone in the forearm. It lies laterally and parallel to ulna, the second of the forearm bones. The radius pivots around the ulna to produce movement at the proximal and distal radio-ulnar joints.

The radius articulates in four places:

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Elbow joint – Partly formed by an articulation between the head of the radius, and the capitulum of the humerus.

Proximal radioulnar joint – An articulation between the radial head, and the radial notch of the ulna.

Wrist joint – An articulation between the distal end of the radius and the carpal bones.

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Distal radioulnar joint – An articulation between the ulnar notch and the head of the ulna.
Ulnar styloid process

The styloid cycle of the ulna projects from the average and back piece of the ulna. It slides a little lower than the head. The head is isolated from the styloid cycle by a downturn for the connection of the pinnacle of the three-sided articular plate, and behind, by a shallow furrow for the ligament of the extensor carpi ulnaris muscle. The styloid cycle of the ulnar changes long between 2 mm and 6 mm.

The radial styloid process: All you need to know about useful landmarks during arthroscopic resection of the scaphoid bone 5

Spiral styloid process palpation

The wrist is put in an impartial situation with the outspread side up. The most distal part of the spiral styloid is distinguished, checked, and touched for neighborhood delicacy.

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Styloid process of radius pain

A nitty-gritty history alone may prompt a particular determination in around 70% of patients who have wrist torment.

Patients who present with the unconstrained beginning of wrist torment, who have an obscure or far off the history of injury, or whose exercises comprise of dreary stacking could be experiencing a carpal bone nonunion or from avascular putrefaction. The hand and wrist can be touched to limit delicacy to a particular anatomic design.

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